Can you connect 2 root servers with each other? To get the double ram and and benefits for eg a Minecraft server network? So that one can join a server on a server from the other root server. If so how?
If you use BungeeCord, you can just host the subservers on the second root server.
Otherwise, nothing comes to mind.
What you are looking for is called a cluster. A computer cluster is a collection of computers that combine their resources to provide higher performance for individual applications.
Please refer:
https://de.wikipedia.org/...nerverbund
How you could actually use that in your case depends on your systems and especially on your abilities.